While it was estimated that around 10 million pairs of glass/halide photochromic lenses were dispensed in the US in 1989, this was at a time when 70% of ophthalmic lenses were plastic. 5 The focus of ...

Technological advances continue to improve the performance of photochromic lenses. Optician presents a selection to suit ...

People who wear glasses know the hassle of swapping back and forth between regular prescription eyeglasses and prescription ...

Transitions Lenses enhance patients' quality of vision by providing the combined benefits of optimal visual acuity, visual comfort and protection from the damaging effects of UV radiation and glare.

As a motorcycle rider, you frequently choose between clear or tinted faceshields when prepping for a ride. Bright summer days ...

Isomerization of organic photochromic molecules involves chemical processes such as: pericyclic reactions, electron and intramolecular hydrogen transfers, cis-trans isomerization and photodimerization ...